Coke-oven.



No. 804,054.' PATENTED NOV. 7, 1905.

M. E. ROTHBBRG.

COKE OVEN.

APPLIUATION FILED MAY 20, 1905.

3 SHEETS-SHEET 1.

WHA/55.555. f/Vl/[A/TOR APPLIGATION FILED MAY 20, 1905.

WITNESSES:

PATBNTBD Nov. v, .1905.

M. E. ROTHBBRG.

COKE OVEN.

3 SHEETS-SHEET 2,

INVENTOR.

/ITTORNEK 3 SHEETS-SHEET 3.

777.. 6 ftpalfmj INVENTOR BY 6 af @14mm ATTORNEY PATENTED NOV. '7, 1905.

M. E. ROTHBERG.

COKE OVEN.

TNESSES.' iff /M/w? TrniTn sTnTns I.aTnnT etnica.

Specification of Letters Patent.

Patented Nov. '7, 1905.

Application led May 201905. Serial No. 261,393.

skilled in the art to which it appertains tol make and use the invention, reference being had to the accompanying drawings, and to letters and figures of reference marked thereon, which form a part of this specification.

The invention relates to coke-ovens of the horizontal open end type having vertical heating-fines in the walls between the cokingchambers, and has for its object the elimination of the cumbersome mechanism required for the frequent reversals of the air and gas, as is usually required with ovens of this class; but like them it is designed to utilize the heat in the waste gases for heating the airsupply to the fuel-gas.

With this object in View the invention consists in the novel construction and combinations of parts, all as hereinafter described, and pointed out in the appended claims.

In the accompanying drawings, illustrating the invention, Figure 1 represents vertical longitudinal half-sections taken, respectively, through. the coling-chamber A and through the heating-fines B B2 in the partition-walls. Fig. 2 represents various horizontal sections taken on lines l 1, 2 2, and 33, Fig. 1. Fig. 3 represents vertical sections taken on the lines A Land 5 5, Fig. I, and an end View of an oven. Fig. A represents an arrangement of a fan in connection with fiues and pipes for effecting a circulation of air, the parts being in plan View.

The sect1on l l is a horizontal half-section through acoking-chamber and partition-wall iiues B' B2. Section 2 2 is a horizontal halfsection through the combustion-chamber under an oven and through the chamber under the heating-fines. Section 3 3 is a horizontal half-section through the air-inlet flue at the top of the oven. Section 4C I is a vertical transverse section through an oven, the top air-inlet Hue, a partition-wall of the heatingflues, the chambers above and below the same, and through a cooling-flue G, and section 5 5 is a vertical section through an oven, heating-flue, and the chambers above and below the same.

In the drawings the letter A designates the coking chambers or ovens, extending longitudinally and opening on each front of the battery, suitable gas-tight doors being provided for such openings.

B B2 are vertical heating-fl ues in the longitudinal walls between the coking-chambers, there being two sets of heating-fines in each such wall upon opposite sides of a median transverse partition CZ', each set being divided into updraft and downdraft flues by a partition d, the downdraft-flues being located at the central part of the wall adjacent to the partition d.

C' designates combustion-chambers under the ovens; @air-distributing chambers under said combustion-chambers and having a horizontal dividing-partition provided with perforations E; C2, chambers under the iues B2 and to the bottom of which partition Z extends, these chambers being on a level with the combustion-chambers C, which communicate therewith through the openings F in a dividing-wail F2.

C3 designates chambers above the iues B2 and B and into which they open; C2, chambers beneath the ues B and into which such iiues open; C5, chambers similar and on a level with the chambers C2, with which they communicate through openings F in a dividingpartition F2; B3, vertical fiues connecting chambers C with the main off-gas flue J, extending transversely in the foundation under the bank of ovens to thc stack and having dampers D; JQ transverse passages on a level with the fiues J and having offsets for access to the stack draft-dampers D; I I, transverse airflues in the foundation on a level with the flues J and communicating with the air-distributing chambers C by vertical flues B, having dam pers D; Cr G, cooling-f1 ues extending transversely under the combustion-chambers and air-distributing cham bers in the floors of'the ovens and connecting with a common or yoke Hue R at the end of the battery, said flues Cr G being open to the atmosphere at the opposite ends thereof; H H, air-inlet flues over the heating-fines B2 in `the roof of the oven; I-I, openings in theroof of the oven for an additional burner at the rear portion of the chamber above the heating-hues, supplied with air through flue H, which connects with opening I-I; K K, gas-feed pipes; L L, burners located in the combustion-chambers C and connected with said gas-feed pipes; M2, additional burners at the front portion of the chamber above the heating-hues, supplied IOO ITO

with air through openings M; M3, additional burners at the rear portion of the chamber above the heating-fines, located in passages H and supplied with air through revertingiiues H; O, a gas-main above and transverse of thebattery of ovens, with which it is connected by pipes communicating with openings or passages N at the center of the ovens.

U is a suction-fan; T, suction-pipes connectingV therewith and connected also with the common or yoke iiues B; T T2, air-discharge pipes, also in connection with the suction-'fan and connecting with the air-flues I I.

In the operation of the oven the gas given off from the coal in the colring process passes up through the passages N to the gas-main O, by which it is conducted to the condensing-house (not shown) and the tar and ammonia removed in the usual way. The puriiied gas is then returned to the ovens by piping connecting with the burner-pipes K, by which it is distributed to the burners L, enters the combustion-chambers C under the oven-chambers, and mingles with the heated air from the chambers C. Heated air for combustion is obtained in the following manner: In the brickwork below the ovens are located a nurnberof iiues G, which run transversely to the oven-chambers A under the entire battery of ovens. One end of the flues G is open to the atmosphere, the other end connecting with a cross-flue R, Fig. Ll, which joins the ends of all the iiues Gr. To prevent the high temperature in the ovens from injuring the foundations, air must be kept circulating through the iiues Gr. This is commonly done by a chimney which connects with the flue B or by a fan discharging the heated air into regenerators; butboth of these systems are objectionable the first because the heated air goes to waste and the second because the use of regenerators requires frequent reversals of the air and gas, which I wish to avoid, deeming it more economical to burn the gas continuously. I propose to utilize the fan for obtaining the circulation of air through the flues Gr, as shown in Fig. il. The air for combustion will be drawn from the iiues G into flue R, thence by the pipes T to the fan U, by which it will be discharged into the pipes T and S, which convey the heated air to the conduits l. The heated air from this conduit passes up through the small flue B into the air-distributing chamber C. The top of this chamber is provided with a number of small openings Il, through which the air iows and uniformly distributesl itself in chamber C. The air mixes with the gas from burner L, combustion takes place, and the products of combustion pass through the perforations F into the chamber C2, under the vertical flues B2, up the same and into Inasmuch as the oven is symmetrical about Vthe line 6 6, Fig. l, the flow of gases, as described, will take place simultaneously and continuously in separate sets of iiues at both ends of the oven. Dampers are provided at D and D', the former to regulate the flow of l air for combustion in chambers C and the latter to regulate the stack-draft in the flues of the different ovens. In Figs. l and 2 three flues Bl and fifteen flues B2 are shown; but I do not wish to be limited to this arrangement.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In double-front coke-ovens, the combination of hollow longitudinal walls having each a median transverse partition, a set of vertical updraft heating-fines and a set of vertical downdraft heating-flues upon each side of said partition and extending from front to middle of the ovens, a chamber above each double set of said heating-hues and into which they open, said chamber extending from front to middle of the ovens, combustion-chambers lunder the ovens having communication with saidupdraft heating-flues, a common central ofi-gas flue in the foundation having connection with the downdraft heating-flues, and air-passages in the foundation having connection with said combustion-chambers, substantially as specified.

2. In double-front coking-ovens, the combinationy of hollow longitudinal walls having each a median transverse partition, a set of vertical updraft heating-fi ues and a set of vertical downdraft heating-tlues upon each side of said partition and extending from front to middle of the ovens, a chamber above each double set of said heating-fines and into which they open, said chamber extending from front to middle of the ovens, combustion-chambers under the ovens having communication with said updraft heating-fines, a central transverse off-gas flue in the foundation having connection with the downdraft heating-fines, and airflues in the foundation at the fronts of the ovens parallel to said off-gas iiue and having communication with the combustion-chambers, substantially as specified.

3. In double-front coking-ovens, the combination of hollow longitudinal walls having each a median transverse partition, a set ofvertical updraftheating-fl ues and a set of ver- IOO IIO

tical downdraft heating-hues upon each side of said partition and extending from front to middle of the ovens, a chamber above each double set of said heating-flues and into which they open, said chamber extending from front to middle of the ovens, a chamber below the updraft-liues of each double set, a separate chamber below the downdraft-fines of each double set, combustion-chambers under the ovens having perforated dividing-walls from the chambers below the updraft heating-fines, a central transverse off-gas flue in the foundation having connection with the downdraft heating-fines, and air-fines in the foundation parallel to said off-gas flue and having communication with the chambers under the updraft heating-fines, substantially as specified.

4. In double-front coking-ovens, the combination of hollow longitudinal walls having each a median transverse partition, a set of vertical updraft heating-fines and a set of vertical downdraft heating-fines upon each side of said partition and extending from front to middle of the ovens, a chamber above each double set of said heating-fines and into which they open, said chamber extending from front to middle of the ovens, a chamber below the updraft-iues of each double set, combustionchambers under the ovens having perforated dividing-walls from the chambers below the updraft heating-liues, an air-distributing chamber below each combustion-chamber and having a perforated dividing-wall therefrom, a central transverse off-gas flue in the foundation having connection with the downdraft heating-hues, and air-flues inthe foundation parallel to said oE-gas flue and having communication with said air-distributing chambers, substantially as specified.

5. In double-front coling-ovens, the combination of hollow longitudinal walls having each a median transverse partition, a set of vertical updraft heating-fines and a set of vertical downdraft heating-hues upon each side of said partition and extending from front to middle of the ovens, a chamber above each double set of said heating-fines and into which they open, said chamber extending from front to middle of the ovens, combustion-chambers under the ovenshaving communication with said updraft heating-flues, a common central off-gas Hue in the foundation having connection with the do wndraft heating-lines, airpassages in the foundation having connection with said combustion-chambers, reverting airfiues in the tops of the ovens connecting' with the chambers above the heating-lines at the rear thereof, and burner-openings in the tops of the ovens connecting with said reverting air-flues, substantially as specified.

6. In double-front coking-ovens, the combination of hollow longitudinal walls having each a median transverse partition, a set of vertical updraf t heating-ues and a set of vertical downdraft heating-fines upon each side of said partition and extending from front to middle of the ovens, a chamber above each double set of said heating-lines and into which they open, said chamber extending from front to middle of the ovens, a chamber below the updraft-Hues of each double set, a chamber below the downdraft-Haes of each double set, combustion-chambers under the ovens having perforated dividing-walls from the chambers below the updraft heating-lines, an air-distributing chamber below 4each combustionchamber and having a perforated dividingwall therefrom, a central off-gas flue in the foundation havingI upw ard-extending branches opening into chambers at the side of the chambers below the downdraft heating-flues and separated therefrom by perforated walls, and air-flues in the foundation having communication with said air-distributing chambers, substantially as specified.

7. In double-front coking-ovens, the combination of hollow longitudinal walls having each a median transverse partition, a set of vertical upd raft heating-fines and a set of vertical downdraft heating-fines upon each side of said partition and extending from front to middle of theovens, a chamber above each double set of said heating-fines and into which they open, said chamber extending from front to middle of the ovens, combustion-chambers under the ovens having communication with said updraft heating-flues, a common central olf-gas iiue in the foundation having connection with the downdraft heating-fines, airflues in the foundation having connection with said combustion-chambers, cooling-fl ues in the floors of the ovens open at one end to the atmosphere and connected at their opposite ends by a yoke-liuc, and a fan and piping connections for drawing air through said coolingliuesand discharging it through the air-flues in the foundation, substantially as specified.

In testimony whereof I afx my signature in presence of two witnesses.

MATI-IEW E. ROTHBERG.

Witnesses:

C. W. CoMsTocx, DAVID P. BALLARD.

IOO 

